1 c. evaporated milk
2 c. sugar
1/4 c. butter
1 c. mini marshmallows
1 (12 oz.) jar peanut butter
1 tsp. vanilla

Combine milk, sugar and butter in heavy skillet. Place over medium heat and boil to soft ball stage. Remove from heat, stir in marshmallows and peanut butter and vanilla until blended. Pour into buttered 8 inch cake dish. Spread to corners. Chill.